SIPROTEC 5, SIPROTEC 5 relay, SIPROTEC 5 siemens, siemens arc protection relay, siemens arc protection, SIEMENS Numerical Relay Siprotec 5 7UM85 numerical protection relay

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The generator protection device SIPROTEC 7UM85 is especially designed for the protection of generators and power units. It contains all required main protection functions and numerous additional protection and monitoring functions.

Thanks to its modularity and flexibility and the powerful engineering tool DIGSI 5, SIPROTEC 7UM85 devices offer future-oriented system solutions with high investment security and low operating costs.
Main function: Typical generator protection functions
Inputs and outputs:
  • 3 predefined standard variants with 8 current transformers, 8 voltage transformers, 7 to 15 binary inputs, 9 to 20 binary outputs, 2 further standard variants with additional 4 transducers are in preparation.
Hardware flexibility: Flexible, adaptable and expandable I/O quantity structure within the scope of the modular SIPROTEC 5 building blocks, 1/6 expansion modules can be added Available with large or small display or without display
Width of housing: 1/3 × 19 inch to 2/1 × 19 inch
All functions can be configured freely with DIGSI 5. For the application of some of the functions, you require the appropriate number of free function points within the device. The function point calculator in the online configurator provides support in determining the required number of function points for your device.
  • Minimal tripping time 9 ms
  • Main protection function is differential protection with adaptive algorithm for maximum sensitivity and stability even at different CT errors, CT saturation and capacitive charging currents
  • Diverse distance protection methods as backup or main 2 protection available: Classic, reactance method (RMD), impedance protection for transformers
  • Directional backup protection and various additional functions
  • Adaptive power swing blocking, Out-of-Step protection
  • Recognition of static and transient ground faults (transi-ent function) in resonant-grounded and isolated networks
  • Arc protection
  • Undervoltage-controlled reactive power protection
  • 1-/3-pole Automatic reclosing function
  • Control, synchrocheck and system interlocking
  • Powerful automation with graphical CFC (Continuous Function Chart)
  • Support of single line in small and large displays
  • Integrated electrical Ethernet port J for DIGSI and IEC 61850 functionality (reporting)
  • Up to four optional pluggable communication modules usable for different and redundant protocols (IEC 61850, IEC 60870-5-103, IEC 60870-5-104, Modbus TCP, DNP3 (serial and TCP)
  • Serial protection data communication over fiber-optic cable, two-wire connections and communication net-works (IEEE C37.94 et al.) including automatic switch over between ring and chain topology
  • High available Ethernet redundancy protocols PRP and HSR
  • Cyber Security acc. NERC CIP and BDEW Whitepaper
  • Phasor Measurement Unit (PMU) for synchrophasor-measured values and IEEE C37.118 protocol
  • Time synchronization IEEE 1588
  • Powerful fault recording
  • Additional functions for simple tests and easy commissioning
  • Adjustable I/O quantity within the scope of the SIPROTEC 5 modular system

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